Robert's your mother's brother

alternative Robert is your mother's brother

1. Synonym of Bob's your uncle.

   Jimmy and I can give you the intel and you just put a tail on the brothers next Thursday. If they visit the depot you’ll know they have the drugs. You follow them back to the minicab office and Robert’s your mother’s brother, as they say.

   2015, Stephen Leather, Black Ops (Spider Shepherd; 12), London: Hodder & Stoughton, →ISBN, page 379

   2 more examples

   To send a byte to the printer, Open the default channel to the printer port, and then send the byte to be printed out by using RST 10h in the usual manner, when you’ve finished, put the screen back as the defult^([sic]) channel, and Robert’s your mother’s brother.

   1987 February, Rupert Goodwins, “Sinclair Surgery: Spectrum on the blink? Rupert Goodwins has a cure”, in David Kelly, editor, Sinclair User, number [59], London: EMAP Business & Computer Publications, →ISSN, →OCLC, page 101, column 3

   The hole, you see, grants access to an electric motor that drives the components that do the physical locking and unlocking. And clearly, if you can operate the motor quite independently of any code, why, then Robert’s your mother’s brother, and you have an easy way in.

   2010, Chris Ewan, chapter 15, in The Good Thief’s Guide to Vegas (Good Thief’s Guide; 3), London: Pocket Books, →ISBN, page 130

   Synonyms: Bob's your uncle